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Congruences between modular forms

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We survey the connections between modular forms and representations of Galois groups that are predicted by the Langlands programme. We focus in particular on the applications of congruences between modular forms (through automorphy lifting theorems) to an improved understanding of these connections, including the author’s recent joint work with James Newton on the existence of the symmetric power liftings of Hilbert modular forms.

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References

  1. Allen P B, Calegari F, Caraiani A, Gee T, Helm D, Le Hung B V, Newton J, Scholze P, Taylor R and Thorne J A, Potential automorphy over CM fields, Ann. Math. (2), 197(3) (2023) 897–1113

  2. Allen P B, Newton J and Thorne J A, Automorphy lifting for residually reducible \(l\)-adic Galois representations, II, Compos. Math. 156(11) (2020) 2399–2422

    Article  MathSciNet  Google Scholar 

  3. Breuil C, Conrad B, Diamond F and Taylor R, On the modularity of elliptic curves over \({bf Q}\): Wild 3-adic exercises, J. Amer. Math. Soc. 14(4) (2001) 843–939

    Article  Google Scholar 

  4. Buzzard K, Diamond F and Jarvis F, On Serre’s conjecture for mod \(\ell \) Galois representations over totally real fields, Duke Math. J. 155(1) (2010) 105–161

    Article  MathSciNet  Google Scholar 

  5. Bellaïche J, The eigenbook–eigenvarieties, families of Galois representations, \(p\)-adic \(L\)-functions, Pathways in Mathematics (2021) (Cham: Birkhäuser/Springer)

  6. Buzzard K and Gee T, Explicit reduction modulo \(p\) of certain two-dimensional crystalline representations, Int. Math. Res. Not. IMRN, (12) (2009) 2303–2317

    MathSciNet  Google Scholar 

  7. Borel A and Jacquet H, Automorphic forms and automorphic representations, in: Automorphic forms, representations and \(L\)-functions, Proc. Sympos. Pure Math., Oregon State Univ., Corvallis, Ore. (1977), Part 1, Proc. Sympos. Pure Math., XXXIII, pages 189–207, Amer. Math. Soc., Providence, R.I. (1979), with a supplement “On the notion of an automorphic representation” by R P Langlands

  8. Barnet-Lamb T, Gee T, Geraghty D and Taylor R, Potential automorphy and change of weight. Ann. Math. (2), 179(2) (2014) 501–609

  9. Barnet-Lamb T, Geraghty D, Harris M and Taylor R, A family of Calabi–Yau varieties and potential automorphy II, Publ. Res. Inst. Math. Sci. 47(1) (2011) 29–98

    Article  MathSciNet  Google Scholar 

  10. Breuil C and Mézard A, Multiplicités modulaires et représentations de \({\rm GL}_2({\bf Z}_p)\) et de \({\rm Gal}({\bf \bar{Q}}_p/{\bf Q}_p)\) en \(l=p\), Duke Math. J. 115(2) (2002) 205–310, with an Appendix by Guy Henniart

  11. Blasius D and Rogawski J, Galois representations for Hilbert modular forms, Bull. Amer. Math. Soc. (N.S.) 21(1) (1989) 65–69

  12. Burungale A A, Skinner C and Ye Tian, The Birch and Swinnerton–Dyer conjecture: A brief survey, in: Nine mathematical challenges—an elucidation, volume 104 of Proc. Sympos. Pure Math., pages 11–29, Amer. Math. Soc., Providence, RI (2021)

  13. Bump D, Automorphic forms and representations, volume 55 of Cambridge Studies in Advanced Mathematics (1997) (Cambridge: Cambridge University Press)

  14. Cartier P, Representations of \(p\)-adic groups: a survey, in: Automorphic forms, representations and \(L\)-functions (Proc. Sympos. Pure Math., Oregon State Univ., Corvallis, Ore., 1977), Part 1, Proc. Sympos. Pure Math., XXXIII, pages 111–155, Amer. Math. Soc., Providence, R.I. (1979)

  15. Carayol H, Sur les représentations \(l\)-adiques associées aux formes modulaires de Hilbert, Ann. Sci. École Norm. Sup. (4) 19(3) (1986) 409–468

  16. Carayol H, Formes modulaires et représentations galoisiennes à valeurs dans un anneau local complet, in: \(p\)-adic monodromy and the Birch and Swinnerton–Dyer conjecture (Boston, MA, 1991), volume 165 of Contemp. Math., pages 213–237, Amer. Math. Soc., Providence, RI (1994)

  17. Calegari F and Geraghty D, Modularity lifting beyond the Taylor–Wiles method, Invent. Math. 211(1) (2018) 297–433

    Article  ADS  MathSciNet  Google Scholar 

  18. Chenevier G, The \(p\)-adic analytic space of pseudocharacters of a profinite group and pseudorepresentations over arbitrary rings, in: Automorphic forms and Galois representations, Vol. 1, volume 414 of London Math. Soc. Lecture Note Ser., pages 221–285 (2014) (Cambridge: Cambridge Univ. Press)

  19. Clozel L, Motifs et formes automorphes: Applications du principe de fonctorialité, in: Automorphic forms, Shimura varieties, and \(L\)-functions, Vol. I (Ann Arbor, MI, 1988), volume 10 of Perspect. Math., pages 77–159 (1990) (Boston, MA: Academic Press)

  20. Colmez P and Serre J-P (eds), Correspondance Serre–Tate, Vol. II, volume 14 of Documents Mathématiques (Paris) [Mathematical Documents (Paris)], Société Mathématique de France, Paris (2015), edited, and with notes and commentaries by Pierre Colmez and Jean-Pierre Serre

  21. Clozel L and Thorne J A, Level-raising and symmetric power functoriality, I, Compos. Math. 150(5) (2014) 729–748

    Article  MathSciNet  Google Scholar 

  22. Deligne P, Formes modulaires et représentations \(l\)-adiques, in: Séminaire Bourbaki, Vol. 1968/69: Exposés 347–363, volume 175 of Lecture Notes in Math., Exp. No. 355, pages 139–172 (1971) (Berlin: Springer)

  23. Deligne P, de Shimura T, in: Séminaire Bourbaki, 23ème année (1970/71), Exp. No. 389, pages 123–165, Lecture Notes in Math., Vol. 244 (1971)

  24. Dembélé L, A non-solvable Galois extension of \({\bf Q}\) ramified at 2 only, C. R. Math. Acad. Sci. Paris 347(3-4) (2009) 111–116

    Article  MathSciNet  Google Scholar 

  25. Dieulefait L V and Pacetti A M, A simplified proof of Serre’s conjectures (2022)

  26. Diamond F and Taylor R, Nonoptimal levels of mod \(l\) modular representations, Invent. Math. 115(3) (1994) 435–462

    Article  ADS  MathSciNet  Google Scholar 

  27. Emerton M, \(p\)-adic families of modular forms (after Hida, Coleman and Mazur), Number 339, pages Exp. No. 1013, vii, 31–61 (2011) Séminaire Bourbaki, Vol. 2009/2010, Exposés 1012–1026

  28. Faltings G, Crystalline cohomology and \(p\)-adic Galois-representations, in: Algebraic analysis, geometry, and number theory (Baltimore, MD, 1988), pages 25–80 (1989) (Baltimore, MD: Johns Hopkins Univ. Press)

  29. Fontaine J-M and Laffaille G, Construction de représentations \(p\)-adiques, Ann. Sci. École Norm. Sup. (4) 15(4) (1983) 547–608

  30. Flath D, Decomposition of representations into tensor products, in: Automorphic forms, representations and \(L\)-functions (Proc. Sympos. Pure Math., Oregon State Univ., Corvallis, Ore., 1977), Part 1, Proc. Sympos. Pure Math., XXXIII, pages 179–183, Amer. Math. Soc., Providence, R.I. (1979)

  31. Fontaine J-M and Mazur B, Geometric Galois representations, in: Elliptic curves, modular forms & Fermat’s last theorem (Hong Kong, 1993), Ser. Number Theory, I, pages 41–78 (1995) (Cambridge, MA: Int. Press)

  32. Fontaine J-M, Représentations \(p\)-adiques, in: Proceedings of the International Congress of Mathematicians, Vol. 1, 2 (Warsaw, 1983), pages 475–486 (1984) (Warsaw: PWN)

  33. Fontaine J-M, Représentations \(l\)-adiques potentiellement semi-stables, Number 223, pages 321–347 (1994), Périodes \(p\)-adiques (Bures-sur-Yvette, 1988)

  34. Frey G, Elliptic curves and solutions of \(A-B=C\), in: Séminaire de Théorie des Nombres, Paris 1985–86, volume 71 of Progr. Math., pages 39–51 (1987) (Boston, MA: Birkhäuser Boston)

  35. Gee T, Herzig F and Savitt D, General Serre weight conjectures, J. Eur. Math. Soc. (JEMS) 20(12) (2018) 2859–2949

    Article  MathSciNet  Google Scholar 

  36. Gelbart S and Jacquet H, A relation between automorphic representations of \({\rm GL}(2)\) and \({\rm GL}(3)\), Ann. Sci. École Norm. Sup. (4) 11(4) (1978) 471–542

  37. Harris M, Lan K-W, Taylor R and Thorne J, On the rigid cohomology of certain Shimura varieties, Res. Math. Sci. 3 (2016) Paper No. 37, 308

  38. Harris M and Taylor R, The geometry and cohomology of some simple Shimura varieties, volume 151 of Annals of Mathematics Studies, (2001) (Princeton, NJ: Princeton University Press), with an Appendix by Vladimir G Berkovich

  39. Khare C, Serre’s modularity conjecture: the level one case, Duke Math. J. 134(3) (2006) 557–589

    Article  MathSciNet  Google Scholar 

  40. Khare C, Serre’s conjecture and its consequences, Japan J. Math. 5(1) (2010) 103–125

    Article  MathSciNet  Google Scholar 

  41. Kim H H, Functoriality for the exterior square of \({\rm GL}_4\) and the symmetric fourth of \({\rm GL}_2\), J. Amer. Math. Soc. 16(1) (2003) 139–183, with Appendix 1 by Dinakar Ramakrishnan and Appendix 2 by Kim and Peter Sarnak

  42. Kisin M, Potentially semi-stable deformation rings, J. Amer. Math. Soc. 21(2) (2008) 513–546

    Article  MathSciNet  Google Scholar 

  43. Kisin M, The Fontaine–Mazur conjecture for \({\rm GL}_2\), J. Amer. Math. Soc. 22(3) (2009) 641–690

    Article  MathSciNet  Google Scholar 

  44. Kisin M, Modularity of 2-adic Barsotti–Tate representations, Invent. Math. 178(3) (2009) 587–634

    Article  ADS  MathSciNet  Google Scholar 

  45. Kim H H and Shahidi F, Functorial products for \({\rm GL}_2\times {\rm GL}_3\) and the symmetric cube for \({\rm GL}_2\), Ann. Math. (2) 155(3) (2002) 837–893, with an Appendix by Colin J Bushnell and Guy Henniart

  46. Kutzko P, The Langlands conjecture for \({\rm Gl}_{2}\) of a local field, Ann. Math. (2) 112(2) (1980) 381–412

  47. Khare C and Wintenberger J-P, On Serre’s conjecture for 2-dimensional mod \(p\) representations of \({\rm Gal}({\bf \overline{Q}}/{\bf Q})\), Ann. Math. (2), 169(1) (2009) 229–253

  48. Khare C and Wintenberger J-P, Serre’s modularity conjecture, I, Invent. Math. 178(3) (2009) 485–504

    Article  ADS  MathSciNet  Google Scholar 

  49. Khare C and Wintenberger J-P, Serre’s modularity conjecture, II, Invent. Math. 178(3) (2009) 505–586

    Article  ADS  MathSciNet  Google Scholar 

  50. Langlands R P, Problems in the theory of automorphic forms, in: Lectures in modern analysis and applications, III, pages 18–61, Lecture Notes in Math., Vol. 170 (1970)

  51. Langlands R P, On the classification of irreducible representations of real algebraic groups, in: Representation theory and harmonic analysis on semisimple Lie groups, volume 31 of Math. Surveys Monogr., pages 101–170, Amer. Math. Soc., Providence, RI (1989)

  52. Lenstra Jr. H W, Complete intersections and Gorenstein rings, in: Elliptic curves, modular forms & Fermat’s last theorem (Hong Kong, 1993), Ser. Number Theory, I, pages 99–109 (1995) (Cambridge, MA: Int. Press)

  53. Marshall S, Bounds for the multiplicities of cohomological automorphic forms on \(\rm GL_2\), Ann. Math. (2) 175(3) (2012) 1629–1651

  54. Mazur B, Modular curves and the Eisenstein ideal, Inst. Hautes Études Sci. Publ. Math. (47) (1978) 33–186, with an Appendix by Mazur and M Rapoport

  55. Mazur B, Deforming Galois representations, in: Galois groups over \({\bf Q}\) (Berkeley, CA, 1987) volume 16 of Math. Sci. Res. Inst. Publ., pages 385–437 (1989) (New York: Springer)

  56. Newton J, Modularity of Galois representations and Langlands functoriality (2022)

  57. Newton J and Thorne J A, Symmetric power functoriality for holomorphic modular forms, Publ. Math. Inst. Hautes Études Sci. 134 (2021) 1–116

    Article  MathSciNet  Google Scholar 

  58. Newton J and Thorne J A, Symmetric power functoriality for holomorphic modular forms, II, Publ. Math. Inst. Hautes Études Sci. 134 (2021) 117–152

    Article  MathSciNet  Google Scholar 

  59. Newton J and Thorne J A, Symmetric power functoriality for Hilbert modular forms (2022)

  60. Pan L, The Fontaine–Mazur conjecture in the residually reducible case, J. Amer. Math. Soc. 35(4) (2022) 1031–1169

    MathSciNet  Google Scholar 

  61. Ribet K A, A modular construction of unramified \(p\)-extensions of \(Q(\mu _{p})\), Invent. Math. 34(3) (1976) 151–162

    Article  ADS  MathSciNet  Google Scholar 

  62. Ribet K A, Congruence relations between modular forms, in: Proceedings of the International Congress of Mathematicians, Vol. 1, 2 (Warsaw, 1983), pages 503–514 (1984) (Warsaw: PWN)

  63. Ribet K A, On modular representations of \({\rm Gal}({\bf \overline{ Q}}/{\bf Q})\) arising from modular forms, Invent. Math. 100(2) (1990) 431–476

    Article  ADS  MathSciNet  Google Scholar 

  64. Sarnak P, Some applications of modular forms, volume 99 of Cambridge Tracts in Mathematics. (1990) (Cambridge: Cambridge University Press)

  65. Scholl A J, Motives for modular forms, Invent. Math. 100(2) (1990) 419–430

    Article  ADS  MathSciNet  Google Scholar 

  66. Scholze P, On torsion in the cohomology of locally symmetric varieties, Ann. Math. (2) 182(3) (2015) 945–1066

  67. Serre J-P, Abelian \(l\)-adic representations and elliptic curves, (1968) (New York–Amsterdam: W. A. Benjamin Inc.) McGill University Lecture Notes written with the collaboration of Willem Kuyk and John Labute

  68. Serre J-P, Une interprétation des congruences relatives à la fonction \(\tau \) de Ramanujan, in: Séminaire Delange-Pisot-Poitou: 1967/68, Théorie des Nombres, Fasc. 1, Exp. 14, page 17, Secrétariat Mathématique, Paris (1969)

  69. Serre J-P, A course in arithmetic, Graduate Texts in Mathematics, No. 7 (1973) (New York–Heidelberg: Springer-Verlag) translated from the French

  70. Serre J-P, Sur les représentations modulaires de degré \(2\) de \({\rm Gal}(\bar{{\bf Q}}/{\bf Q})\), Duke Math. J. 54(1) (1987)

  71. Shin S W, Construction of automorphic Galois representations: the self-dual case, in: Shimura Varieties, volume 457 of London Math. Soc. Lecture Note Ser., pages 209–250 (2020) (Cambridge: Cambridge Univ. Press)

  72. Shotton J, The Breuil–Mézard conjecture when \(l\ne p\), Duke Math. J. 167(4) (2018) 603–678

    Article  MathSciNet  Google Scholar 

  73. Silverman J H, Advanced topics in the arithmetic of elliptic curves, volume 151 of Graduate Texts in Mathematics (1994) (New York: Springer-Verlag)

  74. Skinner C, A note on the \(p\)-adic Galois representations attached to Hilbert modular forms, Doc. Math. 14 (2009) 241–258

    Article  MathSciNet  Google Scholar 

  75. Skinner C and Urban E, The Iwasawa main conjectures for \(\rm GL_2\), Invent. Math. 195(1) (2014) 1–277

    Article  ADS  MathSciNet  Google Scholar 

  76. Tate J, Number theoretic background, in: Automorphic forms, representations and \(L\)-functions (Proc. Sympos. Pure Math., Oregon State Univ., Corvallis, Ore., 1977), Part 2, Proc. Sympos. Pure Math., XXXIII, pages 3–26, Amer. Math. Soc., Providence, R.I. (1979)

  77. Taylor R, On Galois representations associated to Hilbert modular forms, Invent. Math. 98(2) (1989) 265–280

    Article  ADS  MathSciNet  Google Scholar 

  78. Taylor R, Remarks on a conjecture of Fontaine and Mazur, J. Inst. Math. Jussieu 1(1) (2002) 125–143

    Article  MathSciNet  Google Scholar 

  79. Thorne J A, Automorphy lifting for residually reducible \(l\)-adic Galois representations, J. Amer. Math. Soc. 28(3) (2015) 785–870

    Article  MathSciNet  Google Scholar 

  80. Thorne J A, A \(p\)-adic approach to the existence of level-raising congruences, Proc. London Math. Soc. 128(2) (2024) e12584

  81. Thorne J A, Reciprocity and symmetric power functoriality, Current Developments in Mathematics (2021) pp. 95–162 (Somerville, MA: Int. Press)

  82. Taylor R and Wiles A, Ring-theoretic properties of certain Hecke algebras, Ann. Math. (2) 141(3) (1995) 553–572

  83. Wallach N R, Representations of reductive Lie groups, in: Automorphic forms, representations and \(L\)-functions (Proc. Sympos. Pure Math., Oregon State Univ., Corvallis, Ore., 1977), Part 1, Proc. Sympos. Pure Math., XXXIII, pages 71–86, Amer. Math. Soc., Providence, R.I. (1979)

  84. Wiles A, The Iwasawa conjecture for totally real fields, Ann. Math. (2) 131(3) (1990) 493–540

  85. Wiles A, Modular elliptic curves and Fermat’s last theorem, Ann. Math. (2) 141(3) (1995) 443–551

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Communicated by Chandrashekhar Khare.

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Thorne, J.A. Congruences between modular forms. Proc Math Sci 134, 9 (2024). https://doi.org/10.1007/s12044-024-00776-4

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